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Yawning allows the larynx to lower naturally and the pharynx (space at the back of the throat) to widen

Learn more about our contributor Melissa has spent over ten years writing about home design, style, and DIYs for regional and national publications

Cigarette detectors use specially designed sensors to analyze air quality for signs of tobacco smoke

These chemicals include propylene glycol (PG), glycerol (VG), flavourings, and contaminants

Some cigarette allergy symptoms you may develop include difficulty breathing, wheezing, hoarseness, headache, watery eyes, runny nose, congestion, sneezing, itchiness, and allergy-related conditions like sinusitis and bronchitis

But did you know just how many problems it can cause